Having a huge brain freeze today. Installing a new threadless fork. Can't get fork to rotate smoothly, its very tight, but also can't get rid of the lateral wobble. I'm using the same headset I had on old fork, and that worked fine. I think its how I'm adjusting it. I've done this many times before, but am having a brain fart day today I guess. What's tightened first, stem, retainer cap? TIA for dealign with my obvious not paying attention.